HN58C256AT-85 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HN58C256AT-85

256k EEPROM (32-kword × 8-bit) Ready/Busy and RES function (HN58C257A)

Hitachi -> Renesas Electronics 

HN58C256A Series, HN58C257A Series

AC Characteristics (Ta = 0 to +70°C, VCC = 5 V±10%)

Test Conditions

• Input pulse levels: 0.4 V to 3.0 V

0 V to VCC (RES pin*2)

• Input rise and fall time: ≤ 5 ns

• Input timing reference levels: 0.8, 2.0 V

• Output load: 1TTL Gate +100 pF

• Output reference levels: 1.5 V, 1.5 V

Read Cycle

Parameter

Address to output delay

HN58C256A/HN58C257A

-85

-10

Symbol Min Max Min Max

t ACC

—

85

—

100

CE to output delay

OE to output delay

Address to output hold

t CE

—

85

—

100

t OE

10

40

10

50

t OH

0

—

0

—

OE (CE) high to output float*1 tDF

0

40

0

40

RES low to output float*1, 2

t DFR

0

350 0

350

RES to output delay*2

t RR

0

450 0

450

Unit

ns

ns

ns

ns

ns

ns

ns

Test conditions

CE = OE = VIL,

WE = VIH

OE = VIL, WE = VIH

CE = VIL, WE = VIH

CE = OE = VIL,

WE = VIH

CE = VIL, WE = VIH

CE = OE = VIL,

WE = VIH

CE = OE = VIL,

WE = VIH

6

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